CVE-2026-23263 io_uring/zcrx: fix page array leak

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix page array leak d9f595b9a65e "iouring/zcrx: fix leaking pages on sg init fail" fixed a page leakage but didn't free the page array, release it as well...

CVE-2026-23259 io_uring/rw: free potentially allocated iovec on cache put failure

In the Linux kernel, the following vulnerability has been resolved: iouring/rw: free potentially allocated iovec on cache put failure If a read/write request goes through ioreqrwcleanup and has an allocated iovec attached and fails to put to the rwcache, then it may end up with an unaccounted iov...

CVE-2026-23259

In the Linux kernel, the following vulnerability has been resolved: iouring/rw: free potentially allocated iovec on cache put failure If a read/write request goes through ioreqrwcleanup and has an allocated iovec attached and fails to put to the rwcache, then it may end up with an unaccounted iov...

CVE-2026-23259 io_uring/rw: free potentially allocated iovec on cache put failure

In the Linux kernel, the following vulnerability has been resolved: iouring/rw: free potentially allocated iovec on cache put failure If a read/write request goes through ioreqrwcleanup and has an allocated iovec attached and fails to put to the rwcache, then it may end up with an unaccounted iov...

CVE-2026-23259

CVE-2026-23259 affects the Linux kernel io_uring/rw path. The issue arises when a read/write request with an allocated iovec attached fails to be placed into rw_cache, leaving an unaccounted iovec pointer. The fix makes io_rw_recycle() return whether the request was recycled, and uses that result...

Linux Distros Unpatched Vulnerability : CVE-2026-23259

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iouring/rw: free potentially allocated iovec on cache put failure If a read/write request goes through ioreqrwcleanup and has an allocated iovec attached and...

CVE-2026-23263: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix page array leak d9f595b9a65e "iouring/zcrx: fix leaking pages on sg init fail" fixed a page leakage but didn't free the page array, release it as well...

CVE-2026-23259: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iouring/rw: free potentially allocated iovec on cache put failure If a read/write request goes through ioreqrwcleanup and has an allocated iovec attached and fails to put to the rwcache, then it may end up with an unaccounted iov...

Linux kernel io-uring Heap Buffer Overflow DoS

The vulnerability of the createioworker function in the iouring/io-wq.c module, a component of the Linux kernel’s asynchronous input/output interface, is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to cause service failures...

MiracleLinux 9 : kernel-5.14.0-611.38.1.el9_7 (AXSA:2026-320:20)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-320:20 advisory. kernel: Linux kernel iouring: Local privilege escalation, information disclosure, or denial of service via use-after-free CVE-2025-38106 kernel:...

Linux kernel io_uring/zctx Confidential Data Access

The vulnerability of the iouring/zctx component in Linux operating systems is related to improper validation of consistency in input data. Exploiting this vulnerability can allow an attacker to access confidential data...

AlmaLinux 10 : kernel (ALSA-2026:4012)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:4012 advisory. kernel: Linux kernel: Use-after-free in device mapper due to race condition in zone reporting CVE-2025-38141 kernel: Linux kernel iouring: Local privileg...

Oracle Linux 9 : kernel (ELSA-2026-3966)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-3966 advisory. - mlxsw: spectrummr: Fix use-after-free when updating multicast route stats CKI Backport Bot RHEL-143194 CVE-2025-68800 - iouring: fix use-after-free o...

kernel security update

5.14.0-611.38.1 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug:...

Linux kernel io_uring/kbuf DoS

The vulnerability of the iouring/kbuf component in Linux operating systems is related to the copying of buffers without checking the input data. Exploiting this vulnerability can allow an attacker to cause a service failure...

kernel: Linux kernel io_uring: Local privilege escalation, information disclosure, or denial of service via use-after-free

A flaw was found in the Linux kernel's iouring subsystem. A local attacker with low privileges could exploit a use-after-free vulnerability when the sq-thread object is prematurely released while still being accessed by the iouringshowfdinfo function. This flaw could lead to privilege escalation,...

kernel: Linux kernel io_uring: Local privilege escalation, information disclosure, or denial of service via use-after-free

A flaw was found in the Linux kernel's iouring subsystem. A local attacker with low privileges could exploit a use-after-free vulnerability when the sq-thread object is prematurely released while still being accessed by the iouringshowfdinfo function. This flaw could lead to privilege escalation,...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

RHEL 9 : kernel (RHSA-2026:3966)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:3966 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel iouring: Local...

RHEL 10 : kernel (RHSA-2026:4012)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:4012 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Use-after-free ...